Solid porous voronoi structure and porosity percentage

[laurent_delrieu]

Hello
it is doable to make the cuts, but at the moment Rhino/Grasshopper are not very good at that.
Here a solution using Dendro. There are many ways with Dendro to make smooth nodes/sponge.

See here for others sponge related geometry

Solid with sponge-like surface?

I want to create an object with a sponge/bubble-like porous structure on the outside. It should be a solid. What could be an elegant solution? I’m a newbie to Grasshopper. What I tried so far: Created a sphere and linked it into Grasshopper: Brep Created random points in the bounding box of the sphere: Pop3D From the random points, created a 3D Voronoi diagram: Voronoi³ What happens here is that around each point, a cell is constructed. The surfaces of neighboring cells coincide. I…

Voronoi (3D) Ring

And if you want some nice rounding on intersection you could use Polyline smoothing [image] Without smoothing [image] V1_LD.gh (108.5 KB)

Test of Dendro plugin : Ring

Here some of my first test of Dendro plugin. To my point of view this plugin brings the power of OpenVdB in Rhino/Grasshopper. It will certainly be very useful for jewelry, dental, lattices … and all mesh related projects. A ring done with my ring generator, similar to Nervous Cell Cycle. I just spend less than 1 hour to do that. Dendro took 6 seconds !! It is fast, very fast. Wahou thanks @ryein https://n-e-r-v-o-u-s.com/shop/line.php?code=5 [dendro1] [dendro2] [dendro3] [dendro…

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3D Voronoi Porous Structure_LD.gh (23.5 KB)